1 Division of Environmental and Occupational Health Sciences, National Jewish Health, Denver, CO; Division of Pulmonary and Critical Care Sciences, School of Medicine, University of Colorado, Denver, CO; Environmental and Occupational Health, Colorado School of Public Health, University of Colorado, Denver, CO. Electronic address: maierl@njhealth.org.
2 Division of Environmental and Occupational Health Sciences, National Jewish Health, Denver, CO; Department of Epidemiology and Biostatistics, China Medical University, Shenyang, China.
3 Division of Pulmonary, Critical Care and Sleep Medicine, University of Florida, Gainesville, FL.
4 Division of Environmental and Occupational Health Sciences, National Jewish Health, Denver, CO.
5 Department of Biostatistics, National Jewish Health, Denver, CO.
6 Division of Environmental and Occupational Health Sciences, National Jewish Health, Denver, CO; Division of Pulmonary and Critical Care Sciences, School of Medicine, University of Colorado, Denver, CO.
7 Division of Environmental and Occupational Health Sciences, National Jewish Health, Denver, CO; Division of Pulmonary and Critical Care Sciences, School of Medicine, University of Colorado, Denver, CO; Environmental and Occupational Health, Colorado School of Public Health, University of Colorado, Denver, CO.
8 Environmental and Occupational Health, Colorado School of Public Health, University of Colorado, Denver, CO.
9 Pulmonary Division, National Jewish Health, Denver, CO; Division of Pulmonary and Critical Care Sciences, School of Medicine, University of Colorado, Denver, CO.